John Greenwald, M.D.
Hospitalist Physician · Bethesda, MD
John Greenwald, M.D. is a hospitalist physician with a practice address in Bethesda, Maryland, and NPI 1437560554, issued on May 12, 2014. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- John Greenwald
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD210001399 DC
Self-reported in NPPES; status is on the state search - Practice location
- 8901 Rockville Pike, Bethesda, MD 20889
- Phone
- (301) 319-8278
- Enumerated
- May 12, 2014
- Record last updated
- Aug 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 397 in Maryland → Look up another NPI →
Also registered at 8901 Rockville Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Greenwald in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average hospitalist physician in 2024
116 Medicare Part D claims for 51 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
John Greenwald among 397 hospitalist physician records in Maryland
John Greenwald, M.D. is one of 397 hospitalist physician records with a practice address in Maryland. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 58% of them.
- NPI issued2014 · 58% of these records are older, 36% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileNo · 83% of these records are
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Maryland
There are 397 hospitalist physician records in Maryland.
All 397 in Maryland → Every provider in Bethesda → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Kanwal Awan, MDBethesda, MD 208891902067960
- Julia Cheringal, D.O.Bethesda, MD 208891649566282
- David Eigner, MDBethesda, MD 208891699838805
- Hosameddine TalabBethesda, MD 208891407441934
- Cornelia Cudrici, M.D.Bethesda, MD 208921003067414
- Smita Jha, M.D.Bethesda, MD 208921104053644
- Matthew Boyce, M.DGaithersburg, MD 208791164659702
- Kaavya MuraliSilver Spring, MD 209041083236939
Common questions
What is John Greenwald, M.D.'s NPI number?
John Greenwald, M.D.'s National Provider Identifier (NPI) is 1437560554, issued on May 12, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John Greenwald, M.D. located?
The NPPES record lists a practice address at 8901 Rockville Pike, Bethesda, MD, 20889. Phone: (301) 319-8278. Providers update this record themselves, so call before visiting.
How can I verify John Greenwald, M.D.'s license?
Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Greenwald, M.D. prescribe under Medicare Part D?
In 2024, John Greenwald, M.D. had 116 Medicare Part D claims for 51 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is John Greenwald, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.